Radiological impact of phosphogypsum discharged into the Venice lagoon: 222Rn C. Cantaluppi, F. Ceccotto, A. Cianchi, A. Fasson and S. Degetto EPJ Web of Conferences, 24 (2012) 06001 Published online: 04 April 2012 DOI: 10.1051/epjconf/20122406001